I'm at 49 banners right now and I'll be able to get one more in before bedtime. 50 on the first day, I'll take it :D
Also.. I'm kinda disappointed they didn't include the banner counter on the event page this time. I liked that last Halloween or whenever they did that.
Edit:
Yeah, it was last Halloween. Why did they tease us with a feature like that only to not use it again D: